28717378200 has 192 divisors, whose sum is σ = 113046336000. Its totient is φ = 6563963520.

The previous prime is 28717378199. The next prime is 28717378211. The reversal of 28717378200 is 287371782.

It is a happy number.

28717378200 is a `hidden beast` number, since 2 + 8 + 71 + 7 + 378 + 200 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 342060 + ... + 417659.

It is an arithmetic number, because the mean of its divisors is an integer number (588783000).

Almost surely, 2^28717378200 is an apocalyptic number.

28717378200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28717378200 is an abundant number, since it is smaller than the sum of its proper divisors (84328957800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28717378200 is a wasteful number, since it uses less digits than its factorization.

28717378200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759751 (or 759736 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 28717378200 in words is "twenty-eight billion, seven hundred seventeen million, three hundred seventy-eight thousand, two hundred".